<!DOCTYPE html>
<?php
$sel = '';
if (isset($_REQUEST['fn'])) {
	if (file_exists($_REQUEST['fn'])) {
		$sel = unserialize(file_get_contents($_REQUEST['fn']));
	}
}
?>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form>
	<textarea rows="10" cols="80" name='fn'></textarea>
	<input type="submit" name="run" value="OK" />
</form>
<hr />
<pre>
<?php print_r($sel);?>
</pre>
</body>
</html>